Halford tells Billboard.com he can’t wait to meet the fans who pay to play with him and his pals: “I’m sure some of those Rock ‘n’ Roll Fantasy Campers will be full-on. I will be interested to see if there’s some Metal God, Rob Halford lookalikes wandering around Vegas in metal and studs and whatnot – although I’m sure you can find that in Vegas on any given day, right?”

But he thinks many of those who sign up for the camp will already be good players looking for tips to become great: “I think they’re just looking for some professional tips and want to hear from the voice of experience.

“It’s one thing to sing in the shower and it’s another thing to sing on stage. They’re two totally different worlds. So it’ll be an opportunity for me to do the best I can to answer questions: ‘How do you sing this note? How do you manage to scream like that? How do you breathe? How are you able to keep up that type of intensity?’

“I’ll try to explain myself as best as possible and give some insight into what it’s like to be a metal singer.”